William oliphant



(No Model.)

W. OLIPHAIWI'.l

EEED WATER HEATER.

No. l588. PatentedJune 12, 1888.

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WITNES S:

. v BY 44m ATTORNEY -UNITED STATES PATENT OFFICE.

WILLIAM OLIPHANT, OF PATERSON, NEW JERSEY.

FEED-WATER HEATER.

SPECIFICATION forming part el' Letters Patent No. 384,538, dated June 12, 1888.

' Application filed August 1l 1887.

To all whom t may concern.-

Be it known that l, WILLIAM OLIPHANT, a citizen of the United States, residing at Paterson, county' of Passaic, and State of New Jersey, have invented certain new and useful Improvements in Feed-Tater Heaters and Filters for Steam-Boilers, of which the following is a specification, reference being had to the accompanying drawings, in which- Figure l is a vertical longitudinal sectional view of an apparatus embodying the features of my invention; Fig. 2, a transverse partial section; and Fig. 3 a plan view of a part of the apparatus.

The invention relates to combined exhauststeam heaters and lters used for heating and purifying feed-water prior to its introduction to steamboi1ers, and comprises certain improved accessories employed to promote the management and control of the apparatus.

To enable others skilled in the art to which my invention appertains to understand and use the same, I will proceed to describe certain novel features of its construction and operation, and subsequently point out in the appended claim the distinctive characteristics of said invention.

The improvements embrace a device for cleaning the filter-diaphragm by the mechanical force of live steam when the water is disn charged for such purpose, a devicefor automatically maintaining the proper supply of water contained in the apparatus during operation, means for the removal of scum accumulations from the surface of the heated water, and a device for spraying the feed-water into the steanrchamber of the apparatus.

Referring to the drawings, A A represent the shell of the heater, preferably of the cylindrical horizontal pattern; A A', the exhaust-steam induction-pipe; B, the supplemental inductionpipe; C, the exhaust-steam eduction-pipe; F, the filtering material, such as pulverized charcoal; and F the perforated filter diaphragm, such parts corresponding with those which I have described in another application, filed January 4, 1887, Serial No. 223,352, pertaining to this class of apparatus.

G is the feed -water pipe from the feedpump, the latter communicating at G'; E, the feed-delivery pipe to the boiler. The branch Serial No. 245,818. (No model.)

pipe I, having a cock, a, is designed to afford direct delivery to the boiler from the pump, but is normally closed. Circulation thereby takes effect downward from the steamchamber A2 to and through the filter-diaphragm F, thence to the boiler.

J is a vertical external iloat-chamber, cylindrical in form, having end connections above and beneath the desired Water-level, as shown. The iioat J', consisting of solid light material, such as Wood or the like, or otherwise consisting of a hollow metallic vessel, is connected with its piston, packed through a suitable gland, with the valve-lever b of the regulating-valve N, the latter being of any well-known type of construction which will be balanced and be actuated readily by specific gravity of the float. The object of this construction of the iloat mechanism is to obviate the liability of collapse, as in the case of employing the usual hollow metallic ball-heat under the pressure, which is considerable in the practice of the apparatus, and the object is also to permit easy access to the float mechanism for the purpose of repairs or for purposes of adjustment.

rllhe interior section, G2, of the feed-pipe is extended at considerable length within the steam chamber above the waterlevel, and provided with perforations g, the terminus of said pipe being closed. The incoming feed water is thereby injected in sprays and more effectually diffused in contact with the exhauststeam than by a concentrated arrange` ment of perforations.

K is a scum pan or trough open at the top, having its edges located immediately below the normal water-level, and provided with a scum blow-oft" pipe and cock, G3, so that the opening of said cock will produce a surfacecurrent carrying the scum with it. The pan K preferably extends throughout the breadth of the shell A, and may be also continued about the sides of the chamber, if desiredA The filter-cleaning or blow-out pipe H is connected, preferably, to a live-steam source, and extends longitudinally and centrally the length of the diaphragm F, and transversely ICO per sides opposite the diaphragmsurface. Water chambers having a feed-water supplyrllhe injeetion of steam through these perforal pipe with a regulating eoek or valve, an extions will elear the perforations of the diahaast-steam induction-pipe, an exhauststeani I5 phragni and the bed of filtering,` material of eduetion-pipe, a iilterdiaphragxn, and aterdeposits of sediment at times when the heater minally-elosed branched and perforated blowis discharged ofwater for the purpose of eleaning-out pipe7 the latter being loeated beneath ing. rlhe steam and deposits are discharged said diaphragm and the steanreduetion pipe through the pipe M, furnished with a suitable 5 above, substantially as shown. Y cock. VILLIAM OLIPHANT.

I claim as my invention- Vitnessos:

A feed-water heating aud ltering vessel GHAsW. FoRBEs, constructed with main and exhaust steam and l H. F. PARKER. 

